Supermicro 1U Server SYS-6015P-TRB Barebone Dual LGA 771 4 Hot-swap SATA Drive Bay Dual-port Gigabit Ethernet Controller Redundant 700W High-efficiency power supply Full Warranty Dual Intel 64-bit Xeon Quad-Core or Dual-Core, with 667 / 1066 / 1333 MHz FSB Up to 32GB 667/533MHz SDRAM Fully Buffered DIMM Left Universal Slot: 1 64-bit 100MHz PCI-X OR 1 (x8) PCI-Express Right Universal Slot:1 64-bit 133MHz PCI-X OR 1 (x8) PCI-Express Intel (ESB2/Gilgal) 82563EB Dual-port Gigabit Ethernet Controller